Originally Posted by DomesticExtremis
Sounds like an IE 10 problem.
Can you not install Firefox?
Thank you for your reply. As mentioned in the initial post, it's only possible to install alternative browsers in 2 of the 3 computers in question (one runs Windows RT, which is not an x86-based flavour of Windows), and on top of that we're satisfied with IE10 in other regards. My hope is that we need to change a security setting or clear a cache or other some such.